不好

过度劳累对身体不好。

guò dù láo lèi duì shēn tǐ bù hǎo.

Working too hard and being tired is not good for your health.

我一眼就看出他今天心情不好。

wǒ yī yǎn jiù kàn chū tā jīn tiān xīn qíng bù hǎo.

I just glanced and immediately realized that his mood today wasn't good.

长时间看屏幕对眼睛不好。

zhǎng shí jiān kàn píng mù duì yǎn jīng bù hǎo.

Looking at the screen for a long time is not good for your eyes.